Thanks for the graphic. Makes more sense now. So Picard and crew still visited the past, the Borg still showed up etc. in their own universe which still impacted the alternative universe up until 2233.

Question then: In Trek IV when they time travelled back to Frisco that also created a new universe, correct? In an alternate reality the earth's ocean's presuambly get vaprozied?

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Not according to DTI: Watching the Clock. It says that if it's a strictly one-way time travel like the black holes in STXI, an alternate history branches off. But if it's a two-way time travel method, then the new reality created remains entangled with the old and overwrites it.

That said, the novels aren't canon and are prone to being contradicted. But that explanation does jibe quite well with just about every prior episode and movie we've seen, as well as the comments from the new movie's writers.

Not according to DTI: Watching the Clock. It says that if it's a strictly one-way time travel like the black holes in STXI, an alternate history branches off. But if it's a two-way time travel method, then the new reality created remains entangled with the old and overwrites it.

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Contradicting yourself. So does JJ's universe then stamp out the existing one or is a parallel universe created?

To make it work though - you're right. Because in order for the Federation to exist at all, the Borg have to travel back in time.

There's no contradiction. The black hole was a one-way time travel, so it created a branching timeline splitting off in 2233. The two-way forms oftime travel, like the vortex in "Yesterday's Enterprise" (which could be flown back and forth through), caused the prime-timeline to be overwritten, as did use of the Guardian of Forever time portal or the slingshot maneuver.

Not according to DTI: Watching the Clock. It says that if it's a strictly one-way time travel like the black holes in STXI, an alternate history branches off. But if it's a two-way time travel method, then the new reality created remains entangled with the old and overwrites it.

That said, the novels aren't canon and are prone to being contradicted. But that explanation does jibe quite well with just about every prior episode and movie we've seen, as well as the comments from the new movie's writers.

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Even though the novels are not canon they do help me explain the events of Trek 09. There are many different types of time travel. Some types of time travel will be contained in one time line and may not effect that timeline or it could possible overwrite the timeline. We see this in the majority of Trek movies/shows. This type of time travel is contained to one singular universe and is linear. Another type of time travel will create and alternate or parallel universe. That is what we see in Trek 09.

There's no contradiction. The black hole was a one-way time travel, so it created a branching timeline splitting off in 2233. The two-way forms oftime travel, like the vortex in "Yesterday's Enterprise" (which could be flown back and forth through), caused the prime-timeline to be overwritten, as did use of the Guardian of Forever time portal or the slingshot maneuver.

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I see. It's all 'trek-nobabble,' [TM] though right? And a convenient way to solve contunity problems.

On topic; What are the Borg up to in JJ's universe right now - any speculation? Because of all of the temporal activity in the Alpha quadrant it wouldn't peak their interest?

One problem I'm having with the JJ films is they're predominantly Earth-centric. If the Borg were to show up in the third film, I fear it would simply be Borg invade Earth, which we've already seen. If they somehow work the Temporal Cold War into this, I'll scream.

On topic; What are the Borg up to in JJ's universe right now - any speculation? Because of all of the temporal activity in the Alpha quadrant it wouldn't peak their interest?

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next movie premise: We know the Borg seek out technology worthy of assimilation. Certainly the Narada's advanced tech, especially since it included 25th century Borg tech would be a very tempting target for the Borg from nuKirk's era. So, the Borg come to the Alpha Quadrant seeking to assimilate the tech from the Narada.

I think I know how it could be done: V'ger. They could merge V'ger and the concept of the Borg and have V'ger (still Voyager VI / Voyager II) being at the core, but in its effort to evolve it started assimilating humans to try to figure out how to merge with God.

why didn't The Enterprise E, assisting with First Contact, also creat an alternate timeline?

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Picard and crew's actions in ST:FC didn't create an *alternate* timeline, they merely fulfilled the existing one. Meaning: The Ent-E's participation in the events of 2063 was always supposed to happen. It's a predestination paradox.